Use these options to specify how the date range returns results. "Exact" means that the start and end dates of descriptions returned must fall entirely within the date range entered. "Overlapping" means that any description whose start or end dates touch or overlap the target date range will be returned.

This subseries consists of correspondence between Prime Minister William Lyon Mackenzie King and C. Mortimer Bezeau. Also contains other correspondence. Letters from King to Bezeau are originals. They are usually typewritten and signed, but some ...